Operational Flight Trainer (OFT) is a training device, often a flight simulator, intended for general flight training as opposed to specialist tactics and weapons training. An OFT often has a motion platform in order to enable realistic instrument flying (IF) and other procedural training. OFT is a term used particularly by the US Military. A related term is Operational Flight and Tactics Trainer (OFTT), a device more capable than an OFT and designed for tactics training as well.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction